Ragu, I would like you to confirm which revision you have, for this I printed the following registers in the BBB:
0x44E10600 and 0x44E10604 The first will print something like: 1b94402e for BBB rev A5C (XAM3359AZCZ100) ( 1b means rev.A of the microcontroller) 2b94402e for BBB rev C (AM3358BZCZ100) (2b means rev B of the microcontroller) The second register will print something like: 20ff0383 for A5c (this means that this is AM3359) 20fd0383 for C (this means it is an AM3358). Please let me know which are this values in your Board. Thanks! On Thu, Sep 17, 2015 at 11:44 AM, Marcos Díaz < marcos.d...@tallertechnologies.com> wrote: > Yes, sorry about that, There are two registers we can check to see the > different revision numbers. I will check it myself once i confirm that the > different revisions are the problem (i'm not sure because of what Ragu > said). Thanks! > > On Thu, Sep 17, 2015 at 11:12 AM, Joel Sherrill <joel.sherr...@oarcorp.com > > wrote: > >> >> >> On 9/17/2015 8:43 AM, Marcos Díaz wrote: >> >>> Yes, in my case the older (that doesn't work) revision is a >>> XAM3359AZCZ100 >>> >>> And the rev C (that works well with cache) is >>> AM3358BZCZ100 >>> >> >> Can we determine that in software? >> >> On Thu, Sep 17, 2015 at 10:32 AM, Joel Sherrill < >>> joel.sherr...@oarcorp.com <mailto:joel.sherr...@oarcorp.com>> wrote: >>> >>> >>> >>> On September 17, 2015 8:26:41 AM CDT, "Marcos Díaz" < >>> marcos.d...@tallertechnologies.com <mailto: >>> marcos.d...@tallertechnologies.com>> wrote: >>> >Hi, >>> > >>> >How did you see the revision number? if you are using u-boot you can >>> >pause the start and write printenv and enter to see that: >>> > >>> > >>> >board=am335x >>> >board_name=A335BNLT >>> >board_rev=00C0 >>> > >>> > >>> >This is in my version. >>> > >>> >Please tell me so I can check if is the revision, or perhaps is >>> >something else in u-boot initialization. >>> > >>> > >>> >For the question Joel asked there is a way: >>> > >>> > >>> http://dumb-looks-free.blogspot.com.ar/2014/05/beaglebone-black-bbb-revision-serial.html >>> > >>> >apparently, in the eeprom thorugh i2c it is recorded. But first we >>> must >>> >confirm that is a problem from the revisions, since Ragu has the >>> >problem in a rev C. >>> >>> Does the SoC itself have a revision number we can read? It may be >>> that newer boards have a newer CPU. >>> >>> >Greetings >>> > >>> > >>> >On Wed, Sep 16, 2015 at 7:22 PM, Joel Sherrill >>> ><joel.sherr...@oarcorp.com <mailto:joel.sherr...@oarcorp.com>> >>> wrote: >>> > >>> > >>> > >>> >On 9/16/2015 2:41 PM, ragu nath wrote: >>> > >>> >Hi Marcos, >>> > >>> >Great news! I did not find any solution to the issue. I have a >>> REV C >>> >board from element14. Is this the same board you are using? In my >>> >board I saw the issue. >>> > >>> >Does this have anything to do with the patch you submitted [PATCH] >>> >Beaglebone: fix missing clobber in inline assembly. >>> >https://lists.rtems.org/pipermail/devel/2015-September/012531.html >>> >I have not yet tested with this patch. >>> > >>> >The freebsd driver is working with cache disabled. If possible pls >>> >check if it is working with cache enabled in your board. >>> > >>> > >>> >If this is a board revision related issue, is there a way >>> >programmatically to >>> >know which revision the board is? That way the BSP could >>> auto-detect >>> >the right >>> >thing to do. Otherwise, we may be looking at a BSP variant or a >>> build >>> >option. >>> >I would rather avoid those if we can auto-detect. >>> > >>> >--joel >>> > >>> > >>> >Thanks, >>> >Ragunath >>> > >>> > >>> >On Mon, Sep 14, 2015 at 7:22 PM, Marcos Díaz >>> ><marcos.d...@tallertechnologies.com <mailto: >>> marcos.d...@tallertechnologies.com> >>> ><mailto:marcos.d...@tallertechnologies.com <mailto: >>> marcos.d...@tallertechnologies.com>>> wrote: >>> > >>> > Hi Ragu, >>> >I wanted to know if you were able to see something else about the >>> >problem we had in the BBB when using LWIP and enabling cache ( the >>> >program freezes). >>> >I can tell you that here we were using BBB rev. A5C and had this >>> >problem, but now we could test this with a BBB Rev C, and it >>> >successfully works with cache enabled (using the same sdcard in >>> both >>> >boards, one works and the other doesn't). >>> > Greetings >>> > >>> > -- >>> > >>> > ______________________________ >>> > >>> > <http://www.tallertechnologies.com> >>> > >>> > * >>> > * >>> > >>> > Marcos Díaz >>> > >>> > Software Engineer >>> > >>> > * >>> > * >>> > >>> > San Lorenzo 47, 3rd Floor, Office 5 >>> > >>> > Córdoba, Argentina >>> > >>> > * >>> > * >>> > >>> > Phone:+54 351 4217888 / +54 351 4218211/ +54 351 7617452 >>> > >>> > Skype:markdiaz22 >>> > >>> > >>> > >>> > >>> > >>> >-- >>> >ragu >>> > >>> > >>> >-- >>> >Joel Sherrill, Ph.D. Director of Research & Development >>> >joel.sherr...@oarcorp.com On-Line Applications Research >>> >Ask me about RTEMS: a free RTOS Huntsville AL 35805 >>> >Support Available (256) 722-9985 >>> > >>> > >>> > >>> > >>> >-- >>> > >>> >______________________________ >>> > >>> > >>> > >>> > >>> >Marcos Díaz >>> > >>> >Software Engineer >>> > >>> > >>> >San Lorenzo 47, 3rd Floor, Office 5 >>> > >>> >Córdoba, Argentina >>> > >>> > >>> >Phone: +54 351 4217888 / +54 351 4218211/ +54 351 7617452 >>> > >>> >Skype: markdiaz22 >>> >>> --joel >>> >>> >>> >>> >>> -- >>> >>> ______________________________ >>> >>> <http://www.tallertechnologies.com> >>> >>> * >>> * >>> >>> Marcos Díaz >>> >>> Software Engineer >>> >>> * >>> * >>> >>> San Lorenzo 47, 3rd Floor, Office 5 >>> >>> Córdoba, Argentina >>> >>> * >>> * >>> >>> Phone:+54 351 4217888 / +54 351 4218211/ +54 351 7617452 >>> >>> Skype:markdiaz22 >>> >>> >>> >> -- >> Joel Sherrill, Ph.D. Director of Research & Development >> joel.sherr...@oarcorp.com On-Line Applications Research >> Ask me about RTEMS: a free RTOS Huntsville AL 35805 >> Support Available (256) 722-9985 >> > > > > -- > > ______________________________ > > <http://www.tallertechnologies.com> > > > Marcos Díaz > > Software Engineer > > > San Lorenzo 47, 3rd Floor, Office 5 > > Córdoba, Argentina > > > Phone: +54 351 4217888 / +54 351 4218211/ +54 351 7617452 > > Skype: markdiaz22 > > -- ______________________________ <http://www.tallertechnologies.com> Marcos Díaz Software Engineer San Lorenzo 47, 3rd Floor, Office 5 Córdoba, Argentina Phone: +54 351 4217888 / +54 351 4218211/ +54 351 7617452 Skype: markdiaz22
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